From: Eric Biggers <ebiggers@kernel.org>
To: linux-crypto@vger.kernel.org
Cc: linux-nfs@vger.kernel.org
Subject: [PATCH 15/20] nfsd: use crypto_shash_tfm_digest()
Date: Fri, 1 May 2020 22:31:17 -0700 [thread overview]
Message-ID: <20200502053122.995648-16-ebiggers@kernel.org> (raw)
In-Reply-To: <20200502053122.995648-1-ebiggers@kernel.org>
From: Eric Biggers <ebiggers@google.com>
Instead of manually allocating a 'struct shash_desc' on the stack and
calling crypto_shash_digest(), switch to using the new helper function
crypto_shash_tfm_digest() which does this for us.
Cc: linux-nfs@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
fs/nfsd/nfs4recover.c | 26 ++++++--------------------
1 file changed, 6 insertions(+), 20 deletions(-)
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index a8fb18609146a2..9e40dfecf1b1a6 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -127,16 +127,8 @@ nfs4_make_rec_clidname(char *dname, const struct xdr_netobj *clname)
goto out;
}
- {
- SHASH_DESC_ON_STACK(desc, tfm);
-
- desc->tfm = tfm;
-
- status = crypto_shash_digest(desc, clname->data, clname->len,
- cksum.data);
- shash_desc_zero(desc);
- }
-
+ status = crypto_shash_tfm_digest(tfm, clname->data, clname->len,
+ cksum.data);
if (status)
goto out;
@@ -1148,7 +1140,6 @@ nfsd4_cld_create_v2(struct nfs4_client *clp)
struct crypto_shash *tfm = cn->cn_tfm;
struct xdr_netobj cksum;
char *principal = NULL;
- SHASH_DESC_ON_STACK(desc, tfm);
/* Don't upcall if it's already stored */
if (test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags))
@@ -1170,16 +1161,14 @@ nfsd4_cld_create_v2(struct nfs4_client *clp)
else if (clp->cl_cred.cr_principal)
principal = clp->cl_cred.cr_principal;
if (principal) {
- desc->tfm = tfm;
cksum.len = crypto_shash_digestsize(tfm);
cksum.data = kmalloc(cksum.len, GFP_KERNEL);
if (cksum.data == NULL) {
ret = -ENOMEM;
goto out;
}
- ret = crypto_shash_digest(desc, principal, strlen(principal),
- cksum.data);
- shash_desc_zero(desc);
+ ret = crypto_shash_tfm_digest(tfm, principal, strlen(principal),
+ cksum.data);
if (ret) {
kfree(cksum.data);
goto out;
@@ -1343,7 +1332,6 @@ nfsd4_cld_check_v2(struct nfs4_client *clp)
struct crypto_shash *tfm = cn->cn_tfm;
struct xdr_netobj cksum;
char *principal = NULL;
- SHASH_DESC_ON_STACK(desc, tfm);
/* did we already find that this client is stable? */
if (test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags))
@@ -1381,14 +1369,12 @@ nfsd4_cld_check_v2(struct nfs4_client *clp)
principal = clp->cl_cred.cr_principal;
if (principal == NULL)
return -ENOENT;
- desc->tfm = tfm;
cksum.len = crypto_shash_digestsize(tfm);
cksum.data = kmalloc(cksum.len, GFP_KERNEL);
if (cksum.data == NULL)
return -ENOENT;
- status = crypto_shash_digest(desc, principal, strlen(principal),
- cksum.data);
- shash_desc_zero(desc);
+ status = crypto_shash_tfm_digest(tfm, principal,
+ strlen(principal), cksum.data);
if (status) {
kfree(cksum.data);
return -ENOENT;
--
2.26.2
next prev parent reply other threads:[~2020-05-02 5:33 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-02 5:31 [PATCH 00/20] crypto: introduce crypto_shash_tfm_digest() Eric Biggers
2020-05-02 5:31 ` [PATCH 01/20] crypto: hash - " Eric Biggers
2020-05-02 5:31 ` [PATCH 02/20] crypto: arm64/aes-glue - use crypto_shash_tfm_digest() Eric Biggers
2020-05-02 5:31 ` [PATCH 03/20] crypto: essiv " Eric Biggers
2020-05-02 5:31 ` [PATCH 04/20] crypto: artpec6 " Eric Biggers
2020-05-02 5:31 ` [PATCH 05/20] crypto: ccp " Eric Biggers
2020-05-07 21:23 ` Tom Lendacky
2020-05-02 5:31 ` [PATCH 06/20] crypto: ccree " Eric Biggers
2020-05-03 14:01 ` Gilad Ben-Yossef
2020-05-02 5:31 ` [PATCH 07/20] crypto: hisilicon/sec2 " Eric Biggers
2020-05-02 5:31 ` [PATCH 08/20] crypto: mediatek " Eric Biggers
2020-05-02 5:31 ` [PATCH 09/20] crypto: n2 " Eric Biggers
2020-05-02 5:31 ` [PATCH 10/20] crypto: omap-sham " Eric Biggers
2020-05-02 5:31 ` [PATCH 11/20] crypto: s5p-sss " Eric Biggers
2020-05-05 14:19 ` Krzysztof Kozlowski
2020-05-02 5:31 ` [PATCH 12/20] nfc: s3fwrn5: " Eric Biggers
2020-05-02 5:31 ` [PATCH 13/20] fscrypt: " Eric Biggers
2020-05-02 5:31 ` [PATCH 14/20] ecryptfs: " Eric Biggers
2020-05-02 5:31 ` Eric Biggers [this message]
2020-05-04 19:09 ` [PATCH 15/20] nfsd: " J. Bruce Fields
2020-05-02 5:31 ` [PATCH 16/20] ubifs: " Eric Biggers
2020-05-02 5:31 ` [PATCH 17/20] Bluetooth: " Eric Biggers
2020-05-02 5:31 ` [PATCH 18/20] sctp: " Eric Biggers
2020-05-02 5:31 ` [PATCH 19/20] KEYS: encrypted: " Eric Biggers
2020-05-02 5:31 ` [PATCH 20/20] ASoC: cros_ec_codec: " Eric Biggers
2020-05-02 6:44 ` [PATCH 00/20] crypto: introduce crypto_shash_tfm_digest() Marcel Holtmann
2020-05-03 16:13 ` Ard Biesheuvel
2020-05-08 6:07 ` Herbert Xu
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